1. A head for an oral-care implement having a proximal end, a distal end opposite to the proximal end, and a longitudinal extension therebetween, the head comprising:a plurality of tufts extending from a mounting surface of the head, at least some of the tufts being inclined tufts, the inclined tufts comprising tufts that are inclined in a first direction with respect to the mounting surface and tufts that are inclined in a second direction with respect to the mounting surface, the first direction being opposite to the second direction, wherein each of the at least some of the inclined tufts comprises a first group of filaments having a first length, a second group of filaments having a second length different from the first length, and a third group of filaments,
wherein the first group of filaments is sandwiched between the second group of filaments and the third group of filaments such that the tuft's outer lateral area comprises a section of the first group of filaments, a section of the second group of filaments, and a section of the third group of filaments,
wherein the plurality of tufts forms at least a first longitudinal row of tufts and a second longitudinal row of tufts, each longitudinal row being arranged substantially parallel to the longitudinal extension of the head,
wherein the tufts of the first longitudinal row are inclined in a direction toward a proximal end of the head and the tufts of the second longitudinal row are inclined in a direction toward a distal end of the head, the proximal end being opposite to the distal end,
wherein the tufts of the at least first and second longitudinal rows comprise the group of filaments having a greater length, which filaments define a first upper top surface that is substantially parallel to the mounting surface,
wherein the first upper top surface comprises a first transverse row and a second transverse row, the first and second transverse rows being substantially parallel to the mounting surface and substantially perpendicular to the longitudinal extension of the head, and wherein each of the first transverse row and the second transverse row is formed by at least one of the tufts inclined in the first direction and at least one of the tufts inclined in the second direction.